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Iridium-based double perovskites for efficient water oxidation in acid media

Author

Listed:
  • Oscar Diaz-Morales

    (Leiden Institute of Chemistry, Leiden University)

  • Stefan Raaijman

    (Leiden Institute of Chemistry, Leiden University)

  • Ruud Kortlever

    (Leiden Institute of Chemistry, Leiden University)

  • Patricia J. Kooyman

    (ChemE, Faculty of Applied Sciences, Delft University of Technology
    University of Cape Town)

  • Tim Wezendonk

    (ChemE, Faculty of Applied Sciences, Delft University of Technology)

  • Jorge Gascon

    (ChemE, Faculty of Applied Sciences, Delft University of Technology)

  • W. T. Fu

    (Leiden Institute of Chemistry, Leiden University)

  • Marc T. M. Koper

    (Leiden Institute of Chemistry, Leiden University)

Abstract

The development of active, cost-effective and stable oxygen-evolving catalysts is one of the major challenges for solar-to-fuel conversion towards sustainable energy generation. Iridium oxide exhibits the best available compromise between catalytic activity and stability in acid media, but it is prohibitively expensive for large-scale applications. Therefore, preparing oxygen-evolving catalysts with lower amounts of the scarce but active and stable iridium is an attractive avenue to overcome this economical constraint. Here we report on a class of oxygen-evolving catalysts based on iridium double perovskites which contain 32 wt% less iridium than IrO2 and yet exhibit a more than threefold higher activity in acid media. According to recently suggested benchmarking criteria, the iridium double perovskites are the most active catalysts for oxygen evolution in acid media reported until now, to the best of our knowledge, and exhibit similar stability to IrO2.

Suggested Citation

  • Oscar Diaz-Morales & Stefan Raaijman & Ruud Kortlever & Patricia J. Kooyman & Tim Wezendonk & Jorge Gascon & W. T. Fu & Marc T. M. Koper, 2016. "Iridium-based double perovskites for efficient water oxidation in acid media," Nature Communications, Nature, vol. 7(1), pages 1-6, November.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms12363
    DOI: 10.1038/ncomms12363
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    Cited by:

    1. María Retuerto & Laura Pascual & Jorge Torrero & Mohamed Abdel Salam & Álvaro Tolosana-Moranchel & Diego Gianolio & Pilar Ferrer & Paula Kayser & Vincent Wilke & Svenja Stiber & Verónica Celorrio & Mo, 2022. "Highly active and stable OER electrocatalysts derived from Sr2MIrO6 for proton exchange membrane water electrolyzers," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    2. Sanjiang Pan & Hao Li & Dan Liu & Rui Huang & Xuelei Pan & Dan Ren & Jun Li & Mohsen Shakouri & Qixing Zhang & Manjing Wang & Changchun Wei & Liqiang Mai & Bo Zhang & Ying Zhao & Zhenbin Wang & Michae, 2022. "Efficient and stable noble-metal-free catalyst for acidic water oxidation," Nature Communications, Nature, vol. 13(1), pages 1-10, December.

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